For Ellen Driscoll B 1838 (exact), Ardfert RC parish, Co. Kerry, with a father forenamed John, I found 1 rcd.
For John Driscoll M 1837 ditto, I found 1 rcd.
For Mary Ahearn M ditto, I found NO matching rcd. It is highly unusual to find a marriage record for one of the participants without the other. It could be you have some misinformation.
For Mic(hael) Collins, B 1836 +/- 2 yrs, Boherbue RC parish, I found the following at Irishgenealogy.ie:
Baptism of MICHAEL COLLINS of MEEN on 2 December 1836 Parish/Church/Congregation - BOHERBUE Area - KERRY (RC) Name MICHAEL COLLINS Address MEEN Father MICHAEL NR Mother JULIA ANN FITZGERALD Further details in the record Date of Birth 2 December 1836 (BASED ON OTHER DATE INFORMATION) Sponsor 1 JOHN FITZGERALD Sponsor 2 MARY MINIHAN